/tmp/junit7785116771352545190/cachedir/persistent/e1d4f577-829c-412d-a8a6-62f6112e9c6d Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] RunDownloadJobUseCaseImpl$downloadItemsFromChannelProcessor$invokeSuspend - RunDownloadJobUseCaseImpl: #1 http://localhost:42905/resources/lesson001/lesson001.json : channel: start Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - OKHttp-CacheInterceptor: intercept: GET http://localhost:42905/resources/lesson001/lesson001.json Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog INFO: [INFO] UstadCache - UstadCache(): Retrieve http://localhost:42905/resources/lesson001/lesson001.json Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - UstadCache(): FOUND http://localhost:42905/resources/lesson001/lesson001.json Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - OKHttp-CacheInterceptor: HIT(valid) http://localhost:42905/resources/lesson001/lesson001.json 200 OK (contentType=application/json, content-encoding=gzip content-length=391) Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] RunDownloadJobUseCaseImpl$downloadItemsFromChannelProcessor$invokeSuspend - RunDownloadJobUseCaseImpl: #1 http://localhost:42905/resources/lesson001/lesson001.json channel: completed Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] RunDownloadJobUseCaseImpl$downloadItemsFromChannelProcessor$invokeSuspend - RunDownloadJobUseCaseImpl: #2 http://localhost:42905/resources/lesson001/lesson001.json : channel: start Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - OKHttp-CacheInterceptor: intercept: GET http://localhost:42905/resources/lesson001/lesson001.json Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog INFO: [INFO] UstadCache - UstadCache(): Retrieve http://localhost:42905/resources/lesson001/lesson001.json Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - UstadCache(): FOUND http://localhost:42905/resources/lesson001/lesson001.json Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - OKHttp-CacheInterceptor: HIT(valid) http://localhost:42905/resources/lesson001/lesson001.json 200 OK (contentType=application/json, content-encoding=gzip content-length=391) Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] RunDownloadJobUseCaseImpl$downloadItemsFromChannelProcessor$invokeSuspend - RunDownloadJobUseCaseImpl: #2 http://localhost:42905/resources/lesson001/lesson001.json channel: completed Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] RunDownloadJobUseCaseImpl$downloadItemsFromChannelProcessor$invokeSuspend - RunDownloadJobUseCaseImpl: #3 http://localhost:42905/resources/lesson001/script.js : channel: start Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - OKHttp-CacheInterceptor: intercept: GET http://localhost:42905/resources/lesson001/script.js Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog INFO: [INFO] UstadCache - UstadCache(): Retrieve http://localhost:42905/resources/lesson001/script.js Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - UstadCache(): MISS http://localhost:42905/resources/lesson001/script.js Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - OKHttp-CacheInterceptor: newCacheAndStoreResponse: GET http://localhost:42905/resources/lesson001/script.js 200 (OK) Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - OKHttp-CacheInterceptor: MISS http://localhost:42905/resources/lesson001/script.js 200 OK (contentType=text/javascript; charset=UTF-8, content-encoding=null content-length=27) Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - UstadCache(): store request for 1 entries Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - UstadCache(): copied request data for http://localhost:42905/resources/lesson001/script.js to /tmp/junit7785116771352545190/cachedir/tmpWork/2.tmp (integrity=sha256-JFGtc/hXE7NKTMlTAZRdOyNSQYa6iMHQ4FLpuNC55yI=) Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - UstadCache(): cacheEntries created 1 entries Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] RunDownloadJobUseCaseImpl$downloadItemsFromChannelProcessor$invokeSuspend - RunDownloadJobUseCaseImpl: #3 http://localhost:42905/resources/lesson001/script.js channel: completed Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] RunDownloadJobUseCaseImpl$downloadItemsFromChannelProcessor$invokeSuspend - RunDownloadJobUseCaseImpl: #4 http://localhost:42905/resources/lesson001/video.mp4 : channel: start Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - OKHttp-CacheInterceptor: intercept: GET http://localhost:42905/resources/lesson001/video.mp4 Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog INFO: [INFO] UstadCache - UstadCache(): Retrieve http://localhost:42905/resources/lesson001/video.mp4 Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - UstadCache(): MISS http://localhost:42905/resources/lesson001/video.mp4 Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - OKHttp-CacheInterceptor: newCacheAndStoreResponse: GET http://localhost:42905/resources/lesson001/video.mp4 200 (OK) Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - OKHttp-CacheInterceptor: MISS http://localhost:42905/resources/lesson001/video.mp4 200 OK (contentType=video/mp4, content-encoding=null content-length=907481) Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - UstadCache(): store request for 1 entries Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - UstadCache(): copied request data for http://localhost:42905/resources/lesson001/video.mp4 to /tmp/junit7785116771352545190/cachedir/tmpWork/3.tmp (integrity=sha256-Bt63wjDTg7hGG5C3x8GzxwgkKSgHRJ/C/m2szFZ+fIg=) Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - UstadCache(): cacheEntries created 1 entries Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] RunDownloadJobUseCaseImpl$downloadItemsFromChannelProcessor$invokeSuspend - RunDownloadJobUseCaseImpl: #4 http://localhost:42905/resources/lesson001/video.mp4 channel: completed Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] RunDownloadJobUseCaseImpl$downloadItemsFromChannelProcessor$invokeSuspend - RunDownloadJobUseCaseImpl: #5 http://localhost:42905/resources/lesson001/audio.ogg : channel: start Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - OKHttp-CacheInterceptor: intercept: GET http://localhost:42905/resources/lesson001/audio.ogg Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog INFO: [INFO] UstadCache - UstadCache(): Retrieve http://localhost:42905/resources/lesson001/audio.ogg Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - UstadCache(): MISS http://localhost:42905/resources/lesson001/audio.ogg Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - OKHttp-CacheInterceptor: newCacheAndStoreResponse: GET http://localhost:42905/resources/lesson001/audio.ogg 200 (OK) Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - OKHttp-CacheInterceptor: MISS http://localhost:42905/resources/lesson001/audio.ogg 200 OK (contentType=audio/ogg, content-encoding=null content-length=104793) Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - UstadCache(): store request for 1 entries Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - UstadCache(): copied request data for http://localhost:42905/resources/lesson001/audio.ogg to /tmp/junit7785116771352545190/cachedir/tmpWork/4.tmp (integrity=sha256-9XtW2KrkyEfPASJPtFKTYQ2AHP2sQ9kyte6rHNMYGCo=) Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - UstadCache(): cacheEntries created 1 entries Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] RunDownloadJobUseCaseImpl$downloadItemsFromChannelProcessor$invokeSuspend - RunDownloadJobUseCaseImpl: #5 http://localhost:42905/resources/lesson001/audio.ogg channel: completed Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] RunDownloadJobUseCaseImpl$downloadItemsFromChannelProcessor$invokeSuspend - RunDownloadJobUseCaseImpl: #6 http://localhost:42905/resources/lesson001/lesson001.html : channel: start Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - OKHttp-CacheInterceptor: intercept: GET http://localhost:42905/resources/lesson001/lesson001.html Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog INFO: [INFO] UstadCache - UstadCache(): Retrieve http://localhost:42905/resources/lesson001/lesson001.html Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - UstadCache(): MISS http://localhost:42905/resources/lesson001/lesson001.html Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - OKHttp-CacheInterceptor: newCacheAndStoreResponse: GET http://localhost:42905/resources/lesson001/lesson001.html 200 (OK) Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - OKHttp-CacheInterceptor: MISS http://localhost:42905/resources/lesson001/lesson001.html 200 OK (contentType=text/html; charset=UTF-8, content-encoding=null content-length=470) Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - UstadCache(): store request for 1 entries Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - UstadCache(): copied request data for http://localhost:42905/resources/lesson001/lesson001.html to /tmp/junit7785116771352545190/cachedir/tmpWork/5.tmp (integrity=sha256-ds06mLuOE1cGOV8GrV0N6h+3lEhompR4tqdGH6hiMOQ=) Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - UstadCache(): cacheEntries created 1 entries Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] RunDownloadJobUseCaseImpl$downloadItemsFromChannelProcessor$invokeSuspend - RunDownloadJobUseCaseImpl: #6 http://localhost:42905/resources/lesson001/lesson001.html channel: completed Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] RunDownloadJobUseCaseImpl$downloadItemsFromChannelProcessor$invokeSuspend - RunDownloadJobUseCaseImpl: #7 http://localhost:42905/resources/lesson001/cover.png : channel: start Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - OKHttp-CacheInterceptor: intercept: GET http://localhost:42905/resources/lesson001/cover.png Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog INFO: [INFO] UstadCache - UstadCache(): Retrieve http://localhost:42905/resources/lesson001/cover.png Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - UstadCache(): MISS http://localhost:42905/resources/lesson001/cover.png Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - OKHttp-CacheInterceptor: newCacheAndStoreResponse: GET http://localhost:42905/resources/lesson001/cover.png 200 (OK) Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - OKHttp-CacheInterceptor: MISS http://localhost:42905/resources/lesson001/cover.png 200 OK (contentType=image/png, content-encoding=null content-length=4999) Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] UstadCache - UstadCache(): store request for 1 entries Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - UstadCache(): copied request data for http://localhost:42905/resources/lesson001/cover.png to /tmp/junit7785116771352545190/cachedir/tmpWork/6.tmp (integrity=sha256-//yNJLZW07nYNTUxCIcLtyFYMjr5pW6I+oAqMsOiAHM=) Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] UstadCache - UstadCache(): cacheEntries created 1 entries Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINEST: [VERBOSE] RunDownloadJobUseCaseImpl$downloadItemsFromChannelProcessor$invokeSuspend - RunDownloadJobUseCaseImpl: #7 http://localhost:42905/resources/lesson001/cover.png channel: completed Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] DownloadJobItemStatusUpdater$commit$invokeSuspend - TransferJobItemStatusUpdater: update status complete for 1 updates=1 Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog FINE: [DEBUG] RunDownloadJobUseCaseImpl$invoke$invokeSuspend - BlobDownloadClientUseCaseCommonJvm (#1) complete! Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:29 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(39054 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(41085 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(55600 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(59998 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(36984 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(37377 cache2) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(33576 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more Aug 19, 2026 11:09:30 PM io.github.aakira.napier.DebugAntilog performLog SEVERE: [ERROR] DistCache - DistributedCacheHashtable(46554 cache1) exception reading incoming packet java.net.SocketException: Socket closed at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:252) at java.base/java.net.DatagramSocket.receive(DatagramSocket.java:700) at com.ustadmobile.libcache.distributed.DistributedCacheHashtable$ReceivePacketsRunnable.run(DistributedCacheHashtable.kt:170) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.nio.channels.ClosedChannelException at java.base/sun.nio.ch.DatagramChannelImpl.ensureOpen(DatagramChannelImpl.java:267) at java.base/sun.nio.ch.DatagramChannelImpl.blockingReceive(DatagramChannelImpl.java:624) at java.base/sun.nio.ch.DatagramSocketAdaptor.receive(DatagramSocketAdaptor.java:240) ... 8 more ]]>